SFTP: add stream to get method

[adrchw]

Hello Guys,

I have a proposal of the streaming feature for ->get() method of SFTP class.
It is very easy to implement and gives you nice flexibility of what you can do with the streamed file content.
For example, parsing CSV and saving into DB in the fly, etc.

$sftp = new SFTP('www.domain.tld');
if (!$sftp->login('username', 'password')) {
	exit('Login Failed');
}

//returns outputs the contents of filename.remote to callback function
$sftp->get('filename.remote',function($output){
	//parse csv
	//DB save
});

Thanks

[terrafrost]

I cherry picked this into the 1.0 branch and then merged up:

9547587

I also had to fix some CS issues:

0b20aff

(most notably, you used tabs instead of spaces)

Thanks!

[adrchw]

@terrafrost thank you for the quick pull!

Do you know when it may be tagged?

Thanks

[terrafrost]

Do you know when it may be tagged?

I'm thinking when Travis CI adds PHP 8 support. PHP 8 was released a few days ago and I don't want to do a release today and then do one tomorrow if that's when they add PHP 8 support and then do another release the day after I did another release.

I mean, I might be willing to take that risk if it was a super critical bug that affected 90% of users, but as is, it isn't lol.

Thanks!